Liquid ejecting apparatus, method for manufacturing liquid ejecting apparatus, and ink-jet printer
AssigneeBrother Kogyo Kabushiki Kaisha
InventorHiroto Sugahara
Life of this patent
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Abstract
An ink-jet head includes a common liquid chamber, a plurality of pressure chambers, a plurality of nozzles which eject ink, a plurality of individual ink channels communicating with the common liquid chamber, the pressure chambers and the nozzles, and a piezoelectric actuator which selectively varies the volume of the plurality of pressure chambers. The common liquid chamber is disposed on the side opposite to the nozzles with respect to the piezoelectric actuator. A through-hole which forms a part of the individual ink channels is formed in the piezoelectric actuator. This structure ensures a large region in which the nozzles can be disposed, and allows the nozzles to be arranged at higher density.
Claims9
A liquid ejecting apparatus which ejects a liquid, comprising:
- a plurality of pressure chambers disposed along a plane;
- a common liquid chamber which is located on one side of the pressure chambers in a perpendicular direction perpendicular to the plane;
- a plurality of nozzles which ejects liquid and which is located on the other side of the pressure chambers in the perpendicular direction;
- a plurality of individual liquid channels, each of which extends from the common liquid chamber through one of the pressure chambers to one of the nozzles;
- and
- an actuator which is disposed on the other side of the pressure chambers in the perpendicular direction, wherein the actuator faces the plurality of pressure chambers to selectively vary a volume of the plurality of pressure chambers, and a plurality of first through-holes each forming a part of corresponding one of the individual liquid channels is formed in the actuator.
An ink-jet printer which performs recording by ejecting ink onto a recording medium, comprising:
- an ink-jet head which ejects ink onto the recording medium,
- wherein the ink-jet head has a plurality of pressure chambers disposed along a plane, a common ink chamber which is located on one side of the pressure chambers in a direction intersecting the plane, a plurality of nozzles which ejects the ink and which is located on the other side of the pressure chambers in the direction, a plurality of individual ink channels each of which extends from the common ink chamber through one of the pressure chambers to one of the nozzles, and an actuator which is disposed on the other side of the pressure chambers in the direction, which faces the plurality of pressure chambers to selectively vary a volume of the plurality of pressure chambers;
- and
- the common ink chamber is disposed on a side opposite to the nozzles with respect to the actuator such that the nozzles face downward, and the common ink chamber is disposed above the nozzles, the actuator and the pressure chambers, and
- as viewed in a direction perpendicular to the plane, the common ink chamber is disposed in a region which overlaps the pressure chambers, and the individual ink channels are formed to penetrate the actuator.
An ink-jet printer which performs recording by ejecting ink onto a recording medium, comprising:
- an ink-jet head which ejects ink onto the recording medium,
- wherein the ink-jet head has a plurality of pressure chambers disposed along a plane, a common ink chamber which is located on one side of the pressure chambers in a perpendicular direction perpendicular to the plane, a plurality of nozzles which ejects the ink and which is located on the other side of the pressure chambers in the perpendicular direction, a plurality of individual ink channels each of which extends from the common ink chamber through one of the pressure chambers to one of the nozzles, and an actuator which is disposed on the other side of the pressure chambers in the perpendicular direction, wherein the actuator faces the plurality of pressure chambers to selectively vary a volume of the plurality of pressure chamber.
Dependencies are inferred from the claim text.